900198 has 24 divisors (see below), whose sum is σ = 2101008. Its totient is φ = 276912.

The previous prime is 900187. The next prime is 900217. The reversal of 900198 is 891009.

900198 is a modest number, since divided by 198 gives 90 as remainder.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

900198 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1690 + ... + 2157.

It is an arithmetic number, because the mean of its divisors is an integer number (87542).

2⁹⁰⁰¹⁹⁸ is an apocalyptic number.

900198 is an abundant number, since it is smaller than the sum of its proper divisors (1200810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

900198 is a wasteful number, since it uses less digits than its factorization.

900198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868 (or 3865 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 900198 is about 948.7876474744. The cubic root of 900198 is about 96.5560181969.

The spelling of 900198 in words is "nine hundred thousand, one hundred ninety-eight".